Miniature Toggle Switch — SPST/SPDT, 2–12 Pin, MTS/E-TEN/RLS Series, 79 Types

Pin count refers to the number of electrical terminals: 2-pin (SPST) controls a single circuit on/off; 3-pin (SPDT) routes one input to one of two outputs; 6-pin (DPDT) controls two independent circuits simultaneously. Position refers to the number of switch states — 2-position is on/off, 3-position adds a center-off or center-on state. Match these to your wiring diagram before ordering. For example, a 3-pin 2-position SPDT is typically used to switch between two accessories, while a 6-pin 3-position DPDT is common for reversing motor direction.

Depending on the variant selected, these switches are rated at typically 10A, 15A, or 25A. Standard MTS and E-TEN series are generally rated for 10A–15A at 12V DC. The TEN12210/TEN12310 heavy-duty variants are rated at 25A. E-TEN(A) series are rated at 15A. Always verify the specific variant's rating against your circuit's load before installation, and size up by at least 20% for safety margin.

Standard MTS, E-TEN, and RLS series switches are not inherently waterproof. However, this listing includes optional 12mm waterproof caps (black, red, green) that fit over the toggle actuator to provide splash resistance for marine, automotive, and outdoor panel applications. For fully sealed installations, select a cap variant and ensure the panel cutout is sealed with a gasket or sealant around the bushing.

Most panel-mount variants in this listing are designed for a 12mm (≈15/32″) panel cutout. The switch body threads through the hole and is secured with the included nut. Quick-connect tab variants specify either 4.8mm or 6.3mm terminal widths — these refer to the spade connector size, not the panel hole. Confirm the mounting hole diameter from the variant name before drilling your panel.

MTS series are compact sub-miniature toggle switches commonly used in automotive dashboards and hobby electronics. E-TEN series are slightly larger with higher current capacity and are popular in marine and industrial panels. RLS series (F1 suffix) feature a flat-lever actuator style for flush or recessed panel applications. PS series are self-resetting (momentary) push-toggle switches that return to their default position when released. Choose based on your panel space, current load, and whether you need latching or momentary action.

A self-resetting (momentary) switch returns to its default position automatically when you release it — similar to a doorbell button. Choose self-resetting variants (PS and MTS-123/223 series) when you need a momentary signal, such as triggering a horn, activating a starter, or sending a pulse to a relay. Standard (latching) switches stay in position until manually toggled back. If you're unsure, latching is the more common choice for accessory on/off control.

Yes. These miniature toggle switches are widely used in 12V DC automotive and marine applications including dashboard lighting, accessory circuits, bilge pumps, and navigation lights. Ensure the selected variant's current rating exceeds your circuit's load by at least 20% for reliable long-term operation. For AC mains applications, these switches are generally not rated for household voltage — contact us to confirm suitability.